Airworthiness Directive · Amendment 39-19177 · Airspeed/mach indicator
Rosemount Aerospace, Inc. Pitot Probes
This AD applies to Rosemount Aerospace, Inc. Model 851AK pitot probes that were repaired by CSI Aerospace Inc. and have a serial number listed in paragraph (c)(1) of this AD that are known to be installed on but not limited to the airplanes listed in paragraph (c)(2) of this AD. Pitot probes that were repaired by CSI Aerospace Inc. that have a repair date of August 1, 2014, or later, are excluded from the applicability.
(1) 24352, 53257, 61568, 68168, 69913, 69953, 71007, 71802, 71820, 73010, 73406, 75549, 75555, 80489, 80491, 83809, 84200, 84495, 84911, 84922, 85317, 85731, 87225, 87234, 87235, 87241, 87272, 87512, 87551, 87909, 88192, 88622, 90538, 91606, 93291, 93292, 93293, 93305, 93941, 93948, 93960, 94258, 94304, 94559, 94814, 94819, 95150, 95849, 97405, 98194, 99498, 99509, 100105, 100111, 100127, 100313, 100741, 101374, 101500, 102037, 102054, 102309, 102502, 104604, 106134, 106139, 106381, 106905, 107251, 107405, 107406, 107450, 107887, 108174, 108302, 108858, 108859, 108967, 108970, 109119, 109122, 109124, 109128, 109383, 109393, 109394, 109467, 109474, 109488, 109521, 109524, 109537, 109577, 109795, 109798, 109799, 109808, 109810, 109946, 109954, 109958, 109962, 109996, 110323, 110324, 110327, 110338, 110611, 110626, 110880, 110895, 110956, 111061, 111066, 111315, 111320, 111432, 111561, 111571, 111578, 111802, 111807, 112229, 112280, 112343, 112497, 112646, 112657, 112677, 112779, 112781, 112783, 112979, 112993, 113025, 113026, 113129, 113151, 113382, 113721, 113758, 113837, 113838, 113843, 113845, 113920, 113934, 114130, 114147, 114152, 114157, 114223, 114239, 114376, 114572, 114813, 114869, 114872, 114959, 114962A, 114966, 115428, 115713, 116046, 116249, 116253, 116255, 116271, 116424, 116557, 116734, 116792, 116994, 117022, 117144, 117164, 117310, 117412, 117414, 117426, 117427, 117428, 117587, 117961, 118111, 118119, 118234, 118331, 118637, 118639, 118770, 118938, 119115, 119281, 119290, 119414, 119441, 119496, 119587, 119593, 119694, 119695, 119737, 119852, 120456, 120461, 120728, 120823, 120825, 120826, 120829, 121040, 121041, 121110, 121116, 121145, 121172, 121320, 121322, 121524, 121661, 121834, 121852, 122286, 122662, 122843,122934, 122935, 123286, 123289, 123330, 123745, 123746, 123753, 123767, 124144, 124385, 124390, 124396, 124890, 125016, 125021, 125077, 125163, 125174, 126785, 127449, 127894, 127899, 128302, 128307, 129503, 130371, 130377, 130688, 131422, 131423, 131752, 132065, 132067, 132297, 132825, 133103, 133161, 133220, 133291, 133310, 133313, 133394, 133396, 133512, 133521, 134100, 134102, 134403, 134535, 134537, 134639, 134675, 134681, 135136, 135234, 135246, 135250, 135554, 135561, 135568, 135735, 135743, 136075, 136208, 137049, 137398, 137543, 137544, 137642, 139076, 139081, 139433, 139444, 139691, 139694, 139759, 139763, 139971, 139976, 140188, 140563, 140565, 140643, 140649, 140650, 141161, 141356, 141362, 141497, 141501, 141605, 141607, 142426, 142765, 142774, 142775, 143070, 143405, 143409, 143411, 143418, 143816, 143818, 143988, 143992, 143999, 144591, 144814, 144816, 144976, 144977, 146116, 146835, 147421, 148524, 148765, 148777, 149460, 149464, 149510, 149941, 150196, 150206, 150211, 150212, 150214, 150542, 150725, 151077, 151086, 151095, 151493, 152097, 152819, 152922, 152969, 152974, 152981, 153232, 153233, 153453, 153454, 153625, 153628, 153635, 153641, 153956, 153962, 153966, 153984, 154007, 154156, 154704, 154721, 154738, 154741, 155003, 155042, 155045, 155238, 155278, 155517, 156022, 156025, 156222, 156526, 156529, 156672, 157023, 157137, 157143, 158393, 158790, 158797, 159033, 159036, 159413, 159440, 159891, 160000, 160002, 160006, 160456, 160459, 160463, 160466, 160468, 161137, 161139, 161159, 161177, 161184, 161185, 161363, 161364, 161366, 162376, 162384, 162674, 162682, 162685, 162688, 163176, 163178, 163181, 163557, 163559, 163602, 164217, 164279, 164746, 164750, 164907, 164908, 165135, 165259, 165459, 165805, 166235, 166324, 166325, 166326, 166331, 166477, 166481, 166608, 166671, 166673, 166892, 167029, 167030, 167035, 167037, 167182, 167341, 167556, 167559, 167705, 167707, 167709, 167763, 167764, 167765, 167766, 167811, 195627, 195628, 195706, 195707, 195710, 195796, 195833, 195876, 196041, 196042, 196045, 196137, 196234, 196397, 196400, 196401, 196403, 196498, 196500, 196761, 197097, 197137, 197140, 197143, 197238, 197657, 197874, 198528, 198687, 198775, 198780, 198788, 198872, 198878, 199034, 199042, 199187, 199441, 199613, 199616, 199669, 200293, 200324, 200534, 200535, 200538, 200556, 200737, 200738, 200739, 200793, 200830, 200834, 200872, 201576, 201685, 201733, 201892, 201893, 201964, 202053, 202305, 202306, 202469, 202471, 202472, 202596, 202625, 202633, 202760, 202381, 202879, 202901, 203010, 203016, 203147, 204629, 204665, 204714, 204820, 204821, 204822, 205249, 205253, 205329, 205335, 205526, 205527, 205529, 205700, 205882, 205967, 206273, 206406, 206436, 206441, 206646, 207019, 207020, 207021, 207364, 207369, 207683, 207684, 207837, 207849, 207850, 208206, 208381, 208394, 208396, 208543, 209148, 209698, 209704, 209707, 212176, 212525, 212697, 212700, 213952, 213953, 214085, 214089, 214144, 214795, 214803, 215392, 215476, 216214, 216509, 216515, 216951, 216955, 216957, 217368, 217369, 217382, 217441, 217708, 217805, 218112, 218610, 218613, 218757, 218761, 218958, 218965, 218967, 218970, 218976, 219226, 219228, 219233, 219236, 219411, 219418, 219832, 219840, 219842, 219915, 220990, 220991, 221197, 221286, 221635, 224540, 224700, 224701, 224704, 224707, 224876, 225257, 225262, 225586, 225907, 225910, 225974, 226133, 226136, 226465, 226466, 226467, 227159, 227174, 227836, 227837, 229277, 230190, 230191, 230192, 230193, 231082, 232015, 232681, 232684, 234534, 235621, 235628, 238097, 238179, 239755, 239760, 239956, 239964, 242109, 242998, 243347, 243350, 243351, 245230, 246442, 246792, 246851, 247007, 247302, 250747, 253132, 256326, 256327, 258614, 258861, 258865, 260508, 262743, 262744, 263643, 263644, 263645, 263651, 263700, 264117, 264119, 264122, 264123, 264125, 264193, 264738, 265208, 265210, 265655, 265656, 265657, 265658, 268055, 268562, 268564, 268565, 268566, 272372, 272592, 273833, 273835, 275276, 275658, 275663, 277554, 280433, 280435, 296902, 298059, and 298843.
(2) DC-9-11, DC-9-12, DC-9-13, DC-9-14, DC-9-15, DC-9-15F, DC-9-21, DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-32F, DC-9-32F (C-9A, C-9B), DC-9-33F, DC-9-34, DC-9-34F, DC-9-41, DC-9-51, DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), MD-88, MD-90-30, and 717-200.
We are adopting a new airworthiness directive (AD) for Rosemount Aerospace Model 851AK pitot probes that were repaired by CSI Aerospace, Inc. between January 2013 and July 2014 that are installed on airplanes. This AD was prompted by a report that certain pitot probes are indicating the wrong airspeed during flight. This AD requires inspecting the airplane to determine the number of affected pitot probes installed and replacing the affected pitot probes. We are issuing this AD to address the unsafe condition on these products.
Within 30 days after March 16, 2018 (the effective date of this AD), inspect the airplane to determine the number of pitot probes identified in paragraph (c)(1) of this AD that are installed on the airplane. This inspection can be performed through a review of maintenance records in lieu of a physical inspection of the product if the serial number and repair date can be positively identified from the review. If the serial number cannot be positively identified from a review of the aircraft's maintenance records or from the outside of the airplane, this may require the pitot probe to be removed from the fuselage to view the serial number at the inner base of the probe. If it is determined that no more than one pitot probe identified in paragraph (c)(1) of this AD is installed on the airplane, no further action is required except for the ongoing requirement in paragraph (h)(2) of this AD.
(1) If it is determined that more than one pitot probe identified in paragraph (c)(1) of this AD is installed on the airplane during the inspection required in paragraph (g) of this AD, within the next 2 months after March 16, 2018 (the effective date of this AD), do one of the following so that no more than one pitot probe identified in paragraph (c)(1) of this AD is installed on any aircraft simultaneously.
(i) Replace the pitot probes that are listed with pitot probes that do not have a serial number listed in paragraph (c)(1) of this AD; or
(ii) Replace the pitot probes that are listed with one that has been properly repaired, and if repaired by CSI, has a repair date of August 1, 2014, or later. This can be done by having the existing pitot probe repaired by CSI Aerospace, Inc.
(2) As of March 16, 2018 (the effective date of this AD), do not install on any airplane a pitot probe having a serial number listed in paragraph (c)(1) of this AD, unless it has been properly repaired, and if repaired by CSI Aerospace, Inc., has a repair date of August 1, 2014, or later.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
